US20090154146A1 - Streetlight system - Google Patents
Streetlight system Download PDFInfo
- Publication number
- US20090154146A1 US20090154146A1 US12/242,580 US24258008A US2009154146A1 US 20090154146 A1 US20090154146 A1 US 20090154146A1 US 24258008 A US24258008 A US 24258008A US 2009154146 A1 US2009154146 A1 US 2009154146A1
- Authority
- US
- United States
- Prior art keywords
- infrared
- light source
- light emitting
- illumination brightness
- road surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/13—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S362/00—Illumination
- Y10S362/802—Position or condition responsive switch
Definitions
- the present invention generally relates to streetlight systems, particularly, to a streetlight system employing light emitting diode as light source.
- gas discharge lamps have been used extensively as light sources for streetlights due to their high brightness.
- the gas discharge lamps have long response time.
- a streetlight employing gas discharge lamps usually needs to be preheated for a period of time before working.
- the gas discharge lamps have extremely high energy consumption during working time.
- a streetlight system for illuminating a road surface comprises an illuminating device, an infrared detection device and a controlling device.
- the illuminating device includes a light source for selectively providing a lower illumination brightness or a higher illumination brightness.
- the infrared detection device is configured for detecting a vehicles or a passerby on the road surface and generating a detection signal associated therewith.
- the controlling device is configured for controlling the light source to provide the higher illumination brightness according to the detection signal.
- FIG. 1 is a schematic isometric view of a streetlight system, according to a first exemplary embodiment
- FIG. 2 is a schematic isometric view of a streetlight system, according to a second exemplary embodiment.
- the streetlight system 10 for illuminating a road surface 11 , according to a first exemplary embodiment is provided.
- the streetlight system 10 includes an illuminating device 110 , an infrared detection device 120 , and a controlling device 130 .
- the illuminating device 110 includes a shell 112 , and a light source 113 received in the shell 112 .
- the light source 113 is for selectively providing a lower illumination brightness or a higher illumination brightness.
- the light source 113 includes a plurality of light emitting diodes 113 a.
- the infrared detection device 120 is configured for detecting a vehicle or passerby on the road surface 11 , and generating a detection signal associated therewith.
- the infrared detection device 120 includes an infrared light emitting module 121 and an infrared sensing module 122 .
- the infrared light emitting module 121 is configured to emit infrared light towards the road surface 11 .
- the infrared sensing module 122 is configured for sensing infrared light reflected by the vehicles or the passersby on the road surface 11 .
- the infrared detection device 120 is configured for generating a detection signal if the infrared light reflected by the vehicles or passersby is sensed by the infrared sensing module 122 , and sending the detection signal to the controlling device 130 .
- the infrared light emitting module 121 includes at least one infrared light emitting diode for emitting infrared light.
- the infrared light emitting module 121 can further comprises a pulse driving circuit for driving the at least one infrared light emitting diode.
- the controlling device 130 is capable of receiving the detection signal, generating a controlling signal associated with the detection signal, and sending the controlling signal to the light source 113 , thereby controlling the light source 113 to provide the higher illumination brightness according to the detection signal.
- the controlling device 130 is electrically connected to the infrared detection device 120 and the light source 113 .
- the controlling device 130 is capable of controlling the state (lit or not) of the light emitting diodes 113 a. When all of the light emitting diodes 113 a are lit, the light source 113 works with the higher illumination brightness. When half of the light emitting diodes 113 a or less are lightened, the light source 113 works with the lower illumination brightness.
- the streetlight system 10 includes a supporting shaft 111 on a side of the road surface 11 .
- the shell 112 is arranged at an end portion of the supporting shaft 111 and above the road surface 11 , thereby the light source 113 received in the shell 112 is capable of illuminating the road surface 11 .
- the infrared detection device 120 is arranged on the supporting shaft 111 .
- the moisture dispersed in the atmosphere can also reflect infrared light emitted by the infrared light emitting module 121 .
- the controlling device 130 modulates the light source 113 to work with the higher illumination brightness, according to whether the detection device 120 has received infrared light reflected by the moisture.
- the streetlight system 20 has a configuration similar to the streetlight system 10 .
- the streetlight system 20 also includes a light source 213 , an infrared detection device 220 and a controlling device 230 .
- the infrared detection device 220 includes an environmental temperature measuring module 222 and an infrared temperature sensing module 221 .
- the environmental temperature measuring module 222 is configured for measuring the temperature T a of current environment.
- the infrared temperature sensing module 221 is configured for sensing the temperature T b of the atmosphere around the road surface 11 .
- the environmental temperature measuring module 222 includes a heat responsive element and a temperature measuring circuit (not illustrated).
- the heat responsive element has a resistance variable according to the environmental temperature.
- the temperature measuring circuit is electrically connected to the controlling device for measuring the environmental temperature according to the resistance of the heat responsive element.
- the vehicle exhausts or the body temperature of the passersby will cause the temperature T b of the atmosphere around the road surface 11 to rise so that T b becomes greater than T a .
- the infrared detection device 220 generates a detection signal represents that there is vehicle or passersby on the road surface 11 .
- the controlling device 230 receives the detection signal, generates a corresponding first controlling signal according to the detection signal, and sends the first controlling signal to the light source 213 , and the light source 213 is controlled to operate at the higher illumination brightness.
- the temperature T b of the atmosphere around the road surface 11 is generally equal to the environmental temperature, and the infrared detection device 220 generates a detection signal represents that there is no vehicle or passersby on the road surface 11 .
- the controlling device 230 receives the detection signal, generates a corresponding second controlling signal according to the detection signal, and sends the second controlling signal to the light source 213 , and the light source 213 is controlled to operate at low brightness.
- the environmental temperature measuring module 222 can also be some other kind of module for sensing temperature.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
- 1. Technical Field
- The present invention generally relates to streetlight systems, particularly, to a streetlight system employing light emitting diode as light source.
- 2. Discussion of Related Art
- Nowadays, gas discharge lamps have been used extensively as light sources for streetlights due to their high brightness.
- However, the gas discharge lamps have long response time. When electrified, a streetlight employing gas discharge lamps usually needs to be preheated for a period of time before working. Additionally, the gas discharge lamps have extremely high energy consumption during working time.
- Therefore, what is needed is a streetlight system that has short response time and low energy consumption.
- A streetlight system for illuminating a road surface, in accordance with a present embodiment, is provided. The streetlight system comprises an illuminating device, an infrared detection device and a controlling device. The illuminating device includes a light source for selectively providing a lower illumination brightness or a higher illumination brightness. The infrared detection device is configured for detecting a vehicles or a passerby on the road surface and generating a detection signal associated therewith. The controlling device is configured for controlling the light source to provide the higher illumination brightness according to the detection signal.
- Detailed features of the present streetlight system will become more apparent from the following detailed description and claims, and the accompanying drawings.
- Many aspects of the present streetlight system can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present streetlight system. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views, wherein:
-
FIG. 1 is a schematic isometric view of a streetlight system, according to a first exemplary embodiment; -
FIG. 2 is a schematic isometric view of a streetlight system, according to a second exemplary embodiment. - Reference will now be made to the drawings to describe the embodiments of the present streetlight system, in detail.
- Referring to
FIG. 1 , astreetlight system 10 for illuminating aroad surface 11, according to a first exemplary embodiment is provided. Thestreetlight system 10 includes anilluminating device 110, aninfrared detection device 120, and a controllingdevice 130. - The
illuminating device 110 includes ashell 112, and alight source 113 received in theshell 112. Thelight source 113 is for selectively providing a lower illumination brightness or a higher illumination brightness. In this embodiment, thelight source 113 includes a plurality oflight emitting diodes 113 a. - The
infrared detection device 120 is configured for detecting a vehicle or passerby on theroad surface 11, and generating a detection signal associated therewith. - In this embodiment, the
infrared detection device 120 includes an infraredlight emitting module 121 and aninfrared sensing module 122. The infraredlight emitting module 121 is configured to emit infrared light towards theroad surface 11. Theinfrared sensing module 122 is configured for sensing infrared light reflected by the vehicles or the passersby on theroad surface 11. Theinfrared detection device 120 is configured for generating a detection signal if the infrared light reflected by the vehicles or passersby is sensed by theinfrared sensing module 122, and sending the detection signal to the controllingdevice 130. In this exemplary embodiment, the infraredlight emitting module 121 includes at least one infrared light emitting diode for emitting infrared light. The infraredlight emitting module 121 can further comprises a pulse driving circuit for driving the at least one infrared light emitting diode. - The controlling
device 130 is capable of receiving the detection signal, generating a controlling signal associated with the detection signal, and sending the controlling signal to thelight source 113, thereby controlling thelight source 113 to provide the higher illumination brightness according to the detection signal. - In this embodiment, the controlling
device 130 is electrically connected to theinfrared detection device 120 and thelight source 113. The controllingdevice 130 is capable of controlling the state (lit or not) of thelight emitting diodes 113 a. When all of thelight emitting diodes 113 a are lit, thelight source 113 works with the higher illumination brightness. When half of thelight emitting diodes 113 a or less are lightened, thelight source 113 works with the lower illumination brightness. - Furthermore, the
streetlight system 10 includes a supportingshaft 111 on a side of theroad surface 11. Theshell 112 is arranged at an end portion of the supportingshaft 111 and above theroad surface 11, thereby thelight source 113 received in theshell 112 is capable of illuminating theroad surface 11. Theinfrared detection device 120 is arranged on the supportingshaft 111. - It is to be understood that, in foggy or misty weather, the moisture dispersed in the atmosphere can also reflect infrared light emitted by the infrared
light emitting module 121. Thereby, the controllingdevice 130 modulates thelight source 113 to work with the higher illumination brightness, according to whether thedetection device 120 has received infrared light reflected by the moisture. - Referring to
FIG. 2 , astreetlight system 20 according to a second exemplary embodiment is provided. Thestreetlight system 20 has a configuration similar to thestreetlight system 10. Thestreetlight system 20 also includes alight source 213, aninfrared detection device 220 and a controllingdevice 230. - The difference is that, the
infrared detection device 220 includes an environmental temperature measuringmodule 222 and an infraredtemperature sensing module 221. The environmental temperature measuringmodule 222 is configured for measuring the temperature Ta of current environment. The infraredtemperature sensing module 221 is configured for sensing the temperature Tb of the atmosphere around theroad surface 11. In this embodiment, the environmental temperature measuringmodule 222 includes a heat responsive element and a temperature measuring circuit (not illustrated). The heat responsive element has a resistance variable according to the environmental temperature. The temperature measuring circuit is electrically connected to the controlling device for measuring the environmental temperature according to the resistance of the heat responsive element. - When there is vehicle or passersby passing through the
road surface 11, the vehicle exhausts or the body temperature of the passersby will cause the temperature Tb of the atmosphere around theroad surface 11 to rise so that Tb becomes greater than Ta. Then, theinfrared detection device 220 generates a detection signal represents that there is vehicle or passersby on theroad surface 11. The controllingdevice 230 receives the detection signal, generates a corresponding first controlling signal according to the detection signal, and sends the first controlling signal to thelight source 213, and thelight source 213 is controlled to operate at the higher illumination brightness. - When there is no vehicle or passersby passing through the
road surface 11, the temperature Tb of the atmosphere around theroad surface 11 is generally equal to the environmental temperature, and theinfrared detection device 220 generates a detection signal represents that there is no vehicle or passersby on theroad surface 11. The controllingdevice 230 receives the detection signal, generates a corresponding second controlling signal according to the detection signal, and sends the second controlling signal to thelight source 213, and thelight source 213 is controlled to operate at low brightness. - It is to be understood that, the environmental
temperature measuring module 222 can also be some other kind of module for sensing temperature. - Finally, it is to be understood that the above-described embodiments are intended to illustrate rather than limit the invention. Variations may be made to the embodiments without departing from the spirit of the invention as claimed. The above-described embodiment illustrates the scope of the invention but do not restrict the scope of the invention.
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200710203000 | 2007-12-12 | ||
CN2007102030001A CN101457878B (en) | 2007-12-12 | 2007-12-12 | Street lamp system |
CN200710203000.1 | 2007-12-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20090154146A1 true US20090154146A1 (en) | 2009-06-18 |
US7806571B2 US7806571B2 (en) | 2010-10-05 |
Family
ID=40752963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/242,580 Expired - Fee Related US7806571B2 (en) | 2007-12-12 | 2008-09-30 | Streetlight system |
Country Status (2)
Country | Link |
---|---|
US (1) | US7806571B2 (en) |
CN (1) | CN101457878B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120162431A1 (en) * | 2010-12-23 | 2012-06-28 | Scott Riesebosch | Methods and systems for monitoring traffic flow |
CN103079309A (en) * | 2012-12-24 | 2013-05-01 | 余姚市泰联照明电器有限公司 | LED (Light-Emitting Diode) light source regulator control system and LED light source regulator control method |
CN105188212A (en) * | 2015-09-06 | 2015-12-23 | 公安部道路交通安全研究中心 | Intelligent illumination system for underground parking |
CN108419343A (en) * | 2018-02-25 | 2018-08-17 | 海宁川达科技有限公司 | Solar street light monitoring system |
Families Citing this family (16)
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CN101990336B (en) * | 2009-08-05 | 2013-04-10 | 由田新技股份有限公司 | Streetlamp control system |
WO2011037993A2 (en) * | 2009-09-25 | 2011-03-31 | Musco Corporation | Apparatus, method, and system for roadway lighting using solid-state light sources |
CN102196616B (en) * | 2010-03-09 | 2014-11-05 | 上海科斗电子科技有限公司 | Traffic-sensing energy-saving street lamp and energy-saving street lamp system |
CN102196617A (en) * | 2010-03-09 | 2011-09-21 | 上海科斗电子科技有限公司 | Laser-correlation energy-saving street lamp |
CN101894475A (en) * | 2010-05-03 | 2010-11-24 | 蒋菊生 | Method for controlling road lamps |
CN102264171A (en) * | 2010-05-25 | 2011-11-30 | 上海科斗电子科技有限公司 | Long distance sensitive street lamp system |
CN102264169B (en) * | 2010-05-25 | 2015-11-25 | 国网上海市电力公司 | There is the induction road lamp system of distinguishing pedestrian and vehicle heading function |
CN102537694A (en) * | 2010-12-23 | 2012-07-04 | 联胜(中国)科技有限公司 | Light emitting diode light source box and lighting component using same |
CN102655698A (en) * | 2011-08-10 | 2012-09-05 | 东莞市盈通光电照明科技有限公司 | Intelligent lighting system of garage |
CN102506345A (en) * | 2011-10-26 | 2012-06-20 | 苏州晶雷光电照明科技有限公司 | LED streetlamp |
CN102810260B (en) * | 2012-07-31 | 2015-03-18 | 深圳市捷顺科技实业股份有限公司 | System and method for parking place guidance management in park |
CN103118459A (en) * | 2013-01-28 | 2013-05-22 | 四川畅洋泰鼎科技有限公司 | Sensor streetlamp system |
CN103167700A (en) * | 2013-03-30 | 2013-06-19 | 吴为生 | Ceiling lamp control device |
WO2016192435A1 (en) * | 2015-06-05 | 2016-12-08 | 深圳奥比中光科技有限公司 | 3d image apparatus, and optical radiation protection apparatus and method therefor |
CN106093916A (en) * | 2016-08-08 | 2016-11-09 | 成都希德电子信息技术有限公司 | Laser radar sensing illuminator and method |
US10706295B2 (en) | 2018-06-29 | 2020-07-07 | Ford Global Technologies, Llc | Street light with infrared illumination |
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US20020154218A1 (en) * | 1996-11-21 | 2002-10-24 | Detection Dynamics, Inc. | Apparatus within a street lamp for remote surveillance having directional antenna |
US20030117803A1 (en) * | 2001-12-25 | 2003-06-26 | Hsing Chen | Energy saving type of light emitting diode lamp |
US20040064218A1 (en) * | 2002-09-27 | 2004-04-01 | Schanin David J. | Supporting bracket for external power-management controller and/or at least one external sensor device that cooperate to reduce electrical power consumption of an appliance |
US20050174762A1 (en) * | 2004-02-09 | 2005-08-11 | Fogerlie Sivert G. | Light box having a solar panel cover |
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US20120162431A1 (en) * | 2010-12-23 | 2012-06-28 | Scott Riesebosch | Methods and systems for monitoring traffic flow |
CN103079309A (en) * | 2012-12-24 | 2013-05-01 | 余姚市泰联照明电器有限公司 | LED (Light-Emitting Diode) light source regulator control system and LED light source regulator control method |
CN105188212A (en) * | 2015-09-06 | 2015-12-23 | 公安部道路交通安全研究中心 | Intelligent illumination system for underground parking |
CN108419343A (en) * | 2018-02-25 | 2018-08-17 | 海宁川达科技有限公司 | Solar street light monitoring system |
Also Published As
Publication number | Publication date |
---|---|
US7806571B2 (en) | 2010-10-05 |
CN101457878B (en) | 2010-11-10 |
CN101457878A (en) | 2009-06-17 |
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